Switches for appliances - Part 2-4: Particular requirements for independently mounted switches (IEC 61058-2-4:2018)

This document applies to independently mounted switches for appliances (mechanical or
electronic) actuated by hand, by foot or by other human activity, to operate or control
electrical appliances and other equipment for household or similar purposes with a rated
voltage not exceeding 480 V and a rated current not exceeding 63 A.
These switches are intended to be operated by a person, via an actuating member or by
actuating a sensing unit. The actuating member or sensing unit can be integral with or
arranged separately, either physically or electrically, from the switch and involve transmission
of a signal, for example, electrical, optical, acoustic or thermal, between the actuating
member or sensing unit and the switch.
Switches which incorporate additional control functions governed by the switch function are
within the scope of this document.
This document also covers the indirect actuation of the switch when the operation of the
actuating member or sensing unit is provided by a remote control or by a part of an appliance
or equipment, such as a door.
NOTE 1 Electronic switches can be combined with mechanical switches giving full disconnection or microdisconnection.
NOTE 2 Electronic switches without a mechanical switch in the supply circuit provide only electronic
disconnection. Therefore, the circuit on the load side is always considered to be live.
NOTE 3 For switches used in tropical climates, additional requirements can apply.
NOTE 4 Attention is drawn to the fact that the standards for appliances can contain additional or alternative
requirements for switches.
NOTE 5 Throughout this document, the word "appliance" means "appliance or equipment".

Geräteschalter - Teil 2-4: Besondere Anforderungen an unabhängig montierte Schalter (IEC 61058-2-4:2018)

Interrupteurs pour appareils - Partie 2-4: Règles particulières pour les interrupteurs à montage indépendant (IEC 61058-2-4:2018)

IEC 61058-2-4:2018 est disponible sous forme de IEC 61058-2-4:2018 RLV qui contient la Norme internationale et sa version Redline, illustrant les modifications du contenu technique depuis l'édition précédente.L'IEC 61058-2-4:2018 s'applique aux interrupteurs à montage indépendant (mécaniques ou électriques) pour appareils manœuvrés à la main, au pied ou par d'autres activités humaines, pour actionner ou commander des appareils électriques et autres matériels pour usage domestique et analogue, de tension assignée ne dépassant pas 480 V et de courant assigné ne dépassant pas 63 A. Cette deuxième édition annule et remplace la première édition parue en 1995, dont elle constitue une révision technique. Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente: - format global a été modifié pour être compatible avec la structure révisée de la série; - les Annexes K et M ont été ajoutés pour faire partie intégrante du présent document; - l'Annexe L est donnée à titre d'information uniquement. Ce document doit être utilisé conjointement avec l'IEC 61058-1:2016.

Stikala za aparate - 2-4. del: Posebne zahteve za samostojno nameščena stikala (IEC 61058-2-4:2018)

General Information

Status
Published
Publication Date
14-Jun-2021
Technical Committee
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
11-Feb-2021
Due Date
18-Apr-2021
Completion Date
15-Jun-2021

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SLOVENSKI STANDARD
SIST EN IEC 61058-2-4:2021
01-julij-2021
Nadomešča:
SIST EN 61058-2-4:2006
Stikala za aparate - 2-4. del: Posebne zahteve za samostojno nameščena stikala
(IEC 61058-2-4:2018)

Switches for appliances - Part 2-4: Particular requirements for independently mounted

switches (IEC 61058-2-4:2018)

Geräteschalter - Teil 2-4: Besondere Anforderungen an unabhängig montierte Schalter

(IEC 61058-2-4:2018)

Interrupteurs pour appareils - Partie 2-4: Règles particulières pour les interrupteurs à

montage indépendant (IEC 61058-2-4:2018)
Ta slovenski standard je istoveten z: EN IEC 61058-2-4:2021
ICS:
29.120.40 Stikala Switches
SIST EN IEC 61058-2-4:2021 en,fr,de

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN IEC 61058-2-4:2021
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SIST EN IEC 61058-2-4:2021
EUROPEAN STANDARD EN IEC 61058-2-4
NORME EUROPÉENNE
EUROPÄISCHE NORM
February 2021
ICS 29.120.40 Supersedes EN 61058-2-4:2005 and all of its
amendments and corrigenda (if any)
English Version
Switches for appliances - Part 2-4: Particular requirements for
independently mounted switches
(IEC 61058-2-4:2018)

Interrupteurs pour appareils - Partie 2-4: Exigences Geräteschalter - Teil 2-4: Besondere Anforderungen an

particulières pour les interrupteurs à montage indépendant unabhängig montierte Schalter

(IEC 61058-2-4:2018) (IEC 61058-2-4:2018)

This European Standard was approved by CENELEC on 2018-11-16. CENELEC members are bound to comply with the CEN/CENELEC

Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration.

Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC

Management Centre or to any CENELEC member.

This European Standard exists in three official versions (English, French, German). A version in any other language made by translation

under the responsibility of a CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the

same status as the official versions.

CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,

Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the

Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,

Turkey and the United Kingdom.
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels

© 2021 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.

Ref. No. EN IEC 61058-2-4:2021 E
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SIST EN IEC 61058-2-4:2021
EN IEC 61058-2-4:2021 (E)
European foreword

The text of document 23J/433/CDV, future edition 2 of IEC 61058-2-4, prepared by SC 23J "Switches

for appliances" of IEC/TC 23 "Electrical accessories" was submitted to the IEC-CENELEC parallel

vote and approved by CENELEC as EN IEC 61058-2-4:2021.
The following dates are fixed:

• latest date by which the document has to be implemented at national (dop) 2021-08-05

level by publication of an identical national standard or by endorsement

• latest date by which the national standards conflicting with the (dow) 2024-02-05

document have to be withdrawn

This document supersedes EN 61058-2-4:2005 and all of its amendments and corrigenda (if any).

Attention is drawn to the possibility that some of the elements of this document may be the subject of

patent rights. CENELEC shall not be held responsible for identifying any or all such patent rights.

This document has been prepared under a mandate given to CENELEC by the European

Commission and the European Free Trade Association.
Endorsement notice

The text of the International Standard IEC 61058-2-4:2018 was approved by CENELEC as a

European Standard without any modification.
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SIST EN IEC 61058-2-4:2021
EN IEC 61058-2-4:2021 (E)
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications

The following documents are referred to in the text in such a way that some or all of their content

constitutes requirements of this document. For dated references, only the edition cited applies. For

undated references, the latest edition of the referenced document (including any amendments)

applies.

NOTE 1 Where an International Publication has been modified by common modifications, indicated by (mod),

the relevant EN/HD applies.

NOTE 2 Up-to-date information on the latest versions of the European Standards listed in this annex is available

here: www.cenelec.eu.
The Annex ZA of EN IEC 61058-1:2018 applies with the following addition:
Publication Year Title EN/HD Year
IEC 60227-5 - Polyvinyl chloride insulated cables of rated - -
voltages up to and including 450/750 V -
Part 5: Flexible cables (cords)
IEC 60245-4 - Rubber insulated cables - Rated voltages - -
up to and including 450/750 V - Part 4:
Cords and flexible cables

IEC 60669-1 (mod) 2017 Switches for household and similar fixed- EN 60669-1 2018

electrical installations - Part 1: General
requirements
- - +AC 2018
IEC 61058-1 2016 Switches for appliances - Part 1: General EN IEC 61058-1 2018
requirements
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SIST EN IEC 61058-2-4:2021
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SIST EN IEC 61058-2-4:2021
IEC 61058-2-4
Edition 2.0 2018-10
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Switches for appliances –
Part 2-4: Particular requirements for independently mounted switches
Interrupteurs pour appareils –
Partie 2-4: Exigences particulières pour les interrupteurs à montage indépendant
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.120.40 ISBN 978-2-8322-6090-6

Warning! Make sure that you obtained this publication from an authorized distributor.

Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agréé.

® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale
---------------------- Page: 7 ----------------------
SIST EN IEC 61058-2-4:2021
– 2 – IEC 61058-2-4:2018 © IEC 2018
CONTENTS

FOREWORD ......................................................................................................................... 3

1 Scope ............................................................................................................................ 5

2 Normative references..................................................................................................... 5

3 Terms and definitions .................................................................................................... 6

4 General requirements .................................................................................................... 6

5 General information on tests .......................................................................................... 6

6 Rating ........................................................................................................................... 6

7 Classification ................................................................................................................. 6

8 Marking and documentation ........................................................................................... 7

9 Protection against electric shock .................................................................................... 8

10 Provision for earthing ..................................................................................................... 8

11 Terminals and terminations ............................................................................................ 8

12 Construction .................................................................................................................. 8

13 Mechanism .................................................................................................................. 15

14 Protection against ingress of solid foreign objects, ingress of water, and humid

conditions .................................................................................................................... 15

15 Insulation resistance and dielectric strength ................................................................. 16

16 Heating ....................................................................................................................... 16

17 Endurance ................................................................................................................... 17

18 Mechanical strength ..................................................................................................... 17

19 Screws, current-carrying parts and connections ............................................................ 17

20 Clearances, creepage distances, solid insulation and coatings of rigid printed

board assemblies ........................................................................................................ 17

21 Fire hazard .................................................................................................................. 17

22 Resistance to rusting ................................................................................................... 18

23 Abnormal operation and fault conditions for switches .................................................... 18

24 Components for switches ............................................................................................. 18

25 EMC requirements ....................................................................................................... 18

Annexes ............................................................................................................................. 20

Annex K (normative) Routine tests ..................................................................................... 20

Annex L (informative) Sampling tests ................................................................................. 20

Annex M (normative) Switch families .................................................................................. 20

Figure 101 – Example of pull apparatus for testing the cord anchorage ................................ 18

Figure 102 – Example of torque apparatus for testing the cord anchorage ............................ 19

Figure 103 – Example of apparatus for flexing test .............................................................. 19

Table 3 – Switch information and loads placed in groups ....................................................... 7

Table 101 – Rated currents for resistor loads and related types of cables ............................ 12

Table 102 – Torque values for torque test ........................................................................... 14

Table 103 – Torque values for insulating material screws .................................................... 17

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SIST EN IEC 61058-2-4:2021
IEC 61058-2-4:2018 © IEC 2018 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
SWITCHES FOR APPLIANCES –
Part 2-4: Particular requirements for
independently mounted switches
FOREWORD

1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising

all national electrotechnical committees (IEC National Committees). The object of IEC is to promote

international co-operation on all questions concerning standardization in the electrical and electronic fields. To

this end and in addition to other activities, IEC publishes International Standards, Technical Specifications,

Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC

Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested

in the subject dealt with may participate in this preparatory work. International, governmental and non-

governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely

with the International Organization for Standardization (ISO) in accordance with conditions determined by

agreement between the two organizations.

2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international

consensus of opinion on the relevant subjects since each technical committee has representation from all

interested IEC National Committees.

3) IEC Publications have the form of recommendations for international use and are accepted by IEC National

Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC

Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any

misinterpretation by any end user.

4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications

transparently to the maximum extent possible in their national and regional publications. Any divergence

between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in

the latter.

5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity

assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any

services carried out by independent certification bodies.

6) All users should ensure that they have the latest edition of this publication.

7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and

members of its technical committees and IEC National Committees for any personal injury, property damage or

other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and

expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC

Publications.

8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is

indispensable for the correct application of this publication.

9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of

patent rights. IEC shall not be held responsible for identifying any or all such patent rights.

International Standard IEC 61058-2-4 has been prepared by subcommittee 23J: Switches for

appliances, of IEC technical committee 23: Electrical accessories.

This second edition cancels and replaces the first edition published in 1995 and constitutes a

technical revision.

This edition includes the following significant technical changes with respect to the previous

edition:
a) overall format modified to support the revised structure of the series;
b) Annexes K and M have been included as an integral part of this document;
c) Annex L has been included for information purposes only.
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SIST EN IEC 61058-2-4:2021
– 4 – IEC 61058-2-4:2018 © IEC 2018
The text of this International Standard is based on the following documents:
CDV Report on voting
23J/433/CDV 23J/441/RVC

Full information on the voting for the approval of this International Standard can be found in

the report on voting indicated in the above table.

This document has been drafted in accordance with the ISO/IEC Directives, Part 2.

This document is to be used in conjunction with IEC 61058-1:2016.

This document supplements or modifies the corresponding clauses in IEC 61058-1, so as to

convert that publication into the IEC standard: Particular requirements for independently

mounted switches.

When a particular subclause of IEC 61058-1 is not mentioned in this document, that

subclause applies as far as reasonable. Where this document states "addition", "modification"

or "replacement", the relevant text of IEC 61058-1 is to be adapted accordingly.
In this document:
1) the following print types are used:
– requirements proper: in roman type;
– test specifications: in italic type;
– explanatory matter: in smaller roman type.

2) subclauses, figures or tables which are additional to those in IEC 61058-1 are numbered

starting from 101.

A list of all the parts in the IEC 61058 series, under the general title Switches for appliances,

can be found on the IEC website.

The committee has decided that the contents of this document will remain unchanged until the

stability date indicated on the IEC website under "http://webstore.iec.ch" in the data related to

the specific document. At this date, the document will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
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SIST EN IEC 61058-2-4:2021
IEC 61058-2-4:2018 © IEC 2018 – 5 –
SWITCHES FOR APPLIANCES –
Part 2-4: Particular requirements for
independently mounted switches
1 Scope
Clause 1 of IEC 61058-1:2016 is applicable, except as follows.
Addition:

This document applies to independently mounted switches for appliances (mechanical or

electronic) actuated by hand, by foot or by other human activity, to operate or control

electrical appliances and other equipment for household or similar purposes with a rated

voltage not exceeding 480 V and a rated current not exceeding 63 A.

These switches are intended to be operated by a person, via an actuating member or by

actuating a sensing unit. The actuating member or sensing unit can be integral with or

arranged separately, either physically or electrically, from the switch and involve transmission

of a signal, for example, electrical, optical, acoustic or thermal, between the actuating

member or sensing unit and the switch.

Switches which incorporate additional control functions governed by the switch function are

within the scope of this document.

This document also covers the indirect actuation of the switch when the operation of the

actuating member or sensing unit is provided by a remote control or by a part of an appliance

or equipment, such as a door.

NOTE 1 Electronic switches can be combined with mechanical switches giving full disconnection or micro-

disconnection.

NOTE 2 Electronic switches without a mechanical switch in the supply circuit provide only electronic

disconnection. Therefore, the circuit on the load side is always considered to be live.

NOTE 3 For switches used in tropical climates, additional requirements can apply.

NOTE 4 Attention is drawn to the fact that the standards for appliances can contain additional or alternative

requirements for switches.

NOTE 5 Throughout this document, the word "appliance" means "appliance or equipment".

2 Normative references
Clause 2 of IEC 61058-1:2016 is applicable except as follows.
Addition:

IEC 60227-5, Polyvinyl chloride insulated cables of rated voltages up to and including

450/750 V – Part 5: Flexible cables (cords)

IEC 60245-4, Rubber insulated cables – Rated voltages up to and including 450/750 V –

Part 4: Cords and flexible cables
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SIST EN IEC 61058-2-4:2021
– 6 – IEC 61058-2-4:2018 © IEC 2018

IEC 60669-1:2017, Switches for household and similar fixed-electrical installations – Part 1:

General requirements
IEC 61058-1:2016, Switches for appliances – Part 1: General requirements
3 Terms and definitions
Clause 3 of IEC 61058-1:2016 is applicable, except as follows.
3.3 Terms and definitions relating to the different types of switches
Additional terms and definitions:
3.3.101
independently mounted switch
switch intended to be mounted away from the controlled appliance or equipment
3.3.102
design A switch
switch where the cover or coverplate can be removed without displacement of the
conductor(s)
3.3.103
design B switch

switch where the cover or coverplate cannot be removed without displacement of the

conductor(s)
4 General requirements
Clause 4 of IEC 61058-1:2016 is applicable.
5 General information on tests
Clause 5 of IEC 61058-1:2016 is applicable.
6 Rating
Clause 6 of IEC 61058-1:2016 is applicable.
7 Classification
Clause 7 of IEC 61058-1:2016 is applicable except as follows.
7.5 Degree of protection against solid foreign objects
Replacement:
The degree of protection against solid foreign objects is declared.
With the exception of IP0X and IP1X, all IP ratings are allowed.
7.11 According to resistance to ignitability by the glow wire temperature
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SIST EN IEC 61058-2-4:2021
IEC 61058-2-4:2018 © IEC 2018 – 7 –
Subclause 7.11.1 of IEC 61058-1:2016 is not applicable.
7.22 According to the type of forced cooling
Subclause 7.22.2 of IEC 61058-1:2016 is not applicable.
Additional subclauses:
7.101 According to design
7.101.1 design A switch;
7.101.2 design B switch.
NOTE 1 See definitions 3.3.102 and 3.3.103.

NOTE 2 If a switch has a base which cannot be separated from the cover or cover plate, and requires an

intermediate plate which can be removed for redecorating the wall, it is considered to be of design A, provided the

intermediate plate meets the requirements specified for covers and cover plates.
7.102 According to outlet facilities
7.102.1 switch with inlet/outlet facilities for rigid cables;

7.102.2 switch with inlet facilities for rigid cables and outlet facilities for flexible cables.

8 Marking and documentation

Clause 8 of IEC 61058-1:2016 is applicable with the following modifications to Table 3:

Table 3 – Switch information and loads placed in groups
Modification:
Means of information
Common Unique
Characteristic Subclause
No.
type type
reference reference
CT UT
2 SWITCH ENVIRONMENT/MOUNTING

2.1 Degree of protection provided for the switch when 7.5 and 7.6 Marking Marking

mounted according to documentation
(IP code of IEC 60529)
NOTE Additional letters listed in IEC 60529 are not
used.
4 ELECTRICAL LOAD/CONNECTION
4.1 Rated voltage or rated voltage range 6.1 Marking Marking
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SIST EN IEC 61058-2-4:2021
– 8 – IEC 61058-2-4:2018 © IEC 2018
Additional rows:
101 SWITCH DESIGN
101.1 Type of switch design 7.101.1 and Document- Document-
7.101.2 ation ation
102 OUTLET FACILITIES
102.1 Type of outlet facilities 7.102 Document- Document-
ation ation
9 Protection against electric shock
Clause 9 of IEC 61058-1:2016 is applicable, except as follows.
9.1 Addition of the following sentence to a):

The switch shall be fitted with the conductor of the smallest or largest nominal cross-sectional

area according to Table 4 whichever is more unfavourable, or with a rigid conduit, a pliable

conduit or a flexible conduit.
Addition to d):

This test finger, with an electrical indicator, is not applied to membranes in inlet openings and

is applied to thin-walled knock-outs with a force of only 10 N.
Additional subclause:

9.101 Switches operated by means of a removable key or by means of an intermediate part,

such as a cord, a chain or a rod, shall be so designed that the key or intermediate part can

only touch parts which are insulated from live parts.

The key or intermediate part shall be insulated from metal parts of the mechanism, unless the

clearances and creepage distances between live parts and metal parts of the mechanism

have at least the values specified in 20.2.5 and 20.4.5.

Compliance is checked by inspection, by the test of 15.3 and, if necessary, by measurement.

NOTE Lacquer or enamel is not considered to be insulating material for the purpose of 9.101.

10 Provision for earthing
Clause 10 of IEC 61058-1:2016 is applicable.
11 Terminals and terminations
Clause 11 of IEC 61058-1:2016 is applicable.
12 Construction
Clause 12 of IEC 61058-1:2016 is not applicable.
Additional subclauses:
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SIST EN IEC 61058-2-4:2021
IEC 61058-2-4:2018 © IEC 2018 – 9 –

12.101 Insulating linings, barriers and the like, shall have adequate mechanical strength and

shall be secured in a reliable manner.
Compliance is checked by inspection after the tests of Clause 18.
12.102 Switches shall be so constructed as to permit:
• easy introduction and connection of the conductors in the terminals;

• adequate space between the underside of the base and the surface on which the base is

mounted or between the sides of the base and the enclosure (cover or box) so that, after

installation of the switch, the insulation of the conductors does not come in contact with

live parts of different polarity or with moving parts of the mechanism, such as the spindle

of a rotary switch;

NOTE This requirement does not imply that the metal parts of the terminals are necessarily protected by

insulating barriers or insulating shoulders to avoid contact, due to incorrect installation of the terminal metal

parts, with the insulation of the conductor.

• easy fixing of the base to a wall or in a box and correct positioning of the conductors. For

surface-type switches, mounted on a mounting plate, a wiring channel may be needed to

comply with this requirement.

In addition, switches classified according to 7.101.1 (design A switch) shall permit an easy

positioning and removal of the cover or cover plate, without displacing the conductors.

Compliance is checked by inspection and by an installation test with conductors of the largest

cross-sectional area for the relevant terminal size, in Table 4.

12.103 Covers and cover plates or parts thereof, which are intended to ensure protection

against electric shock, shall be held in place at two or more points by effective fixing.

Covers and cover plates or parts thereof may be fixed by means of a single fixing, for

example by a screw, provided that they are retained in position by another means (e.g. by a

shoulder).

It is recommended that the fixings of covers and cover plates or parts thereof be captive. The

use of tight fixing washers of cardboard or the like is deemed to be an adequate method for

securing screws intended to be captive.

NOTE Live parts and non-earthed metal parts separated from live parts in such a way that creepage distances

and clearances have values specified in Clause 20 are not considered as accessible if the requirements of 12.103

are met.

For switches with a degree of protection IPX0, the fixing of covers or cover plates shall not

serve to fix any other part, except the knobs.

When the fixings of covers or cover plates also serve to fix the base, there shall be sufficient

means to maintain the base in position after removal of the cover or cover plate.

Decorative covers, cover plates or parts thereof not providing protection against electric shock

are not considered as covers or cover plates within the meaning of 12.103.

For covers and cover plates or parts thereof whose fixing is of the screw-type, compliance is

checked by inspection and by an installation test.

For covers and cover plates or parts thereof whose fixing is not dependent on screws and

whose removal is obtained by applying a force in a direction approximately perpendicular to

the mounting/supporting surface, compliance is checked by applying the test described in

13.3.2 of IEC 60669-1:2017 under the conditions set out in 20.4 to 20.6 of IEC 60669-1:2017.

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SIST EN IEC 61058-2-4:2021
– 10 – IEC 61058-2-4:2018 © IEC 2018

12.104 Surface-type switches with degree of protection IPX0 shall be so constructed that,

when they are fixed and wired as in normal use, there are no free openings in their

enclosures.

Compliance is checked by inspection and by an installation test with conductors of the cross-

sectional area specified in Table 4.

NOTE Small gaps between enclosures and conduits or cables, or between enclosures and operating means are

disregarded.

12.105 Knobs of rotary switches shall be securely coupled to the shaft or part operating the

mechanism.
The knob is subjected for 1 min to an axial pull of 100 N .

In addition, for knobs of switches having only one direction of operation, a torque of 1 Nm or

the actuating torque if this is greater, is applied 100 times in the direction opposite to the

direction of operation.
During the test, the knob shall not become detached.

NOTE Requirements for the fixation of other types of actuating members are under consideration.

12.106 Screws or other means for mounting the switch on a surface or in a box or enclosure

apart from panel mounting shall be easily accessible from the front. These means shall not

serve any other fixing purpose.
12.107 Other electrical accessories combined with switches shall comply with the
requirements of the standard for the accessory in question.

12.108 Switches other than those with degree of protection IPX0 shall be totally enclosed

when fitted with conduits o
...

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